Anna Cooke Kendrick (born August 9, 1985) is an American actress, singer and film director. Known for playing upbeat and endearing characters in comedies and musicals, her accolades include nomination
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd596de06b9a642bf606e1bb6aeb04ed52d30eb38a9f0d62e99b25067644c607. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43b28a88-62ef-4bf8-807f-bfcd1384ab35.json and https://artists.proofprofile.net/proofs/artist/43b28a88-62ef-4bf8-807f-bfcd1384ab35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Takes Two (feat. Eric Andre, Daveed Diggs, Kid Cudi & Trolls)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae10fe3f80ff711feda860929baa69bd734c4a3fb7dce4ce9d4db30c8cd4456. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC12301393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f04f8c30060ba1bc92ca2915c2a85644a5a5a14f1d98fb614309c124f73fd2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71209195.
Winter Wonderland / Here Comes Santa Claus - From "Pitch Perfect 2" Soundtrack
Pitch Perfect 2 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c118870705dc86938b748f14d1eccfa42262e3d15a72a48f603c7de24bf53d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71504641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6333c2b131bc2737f629b930be4f1afc72b455f16e2b9d77dbe818b55b4f40. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601602.
Pitch Perfect 2 - Special Edition (Original Motion Picture Soundtrack)
Cups (Pitch Perfect’s “When I’m Gone”) - Pop Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d67b242f7e0098c64980b1a311e3a0ed7276cd9b984599a34ab294d73a9180. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71303519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7e7d020def5ca1f1e83302a25e90baf1a6d753d87f41c5341473e2ddcc498c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKO10405326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d67b242f7e0098c64980b1a311e3a0ed7276cd9b984599a34ab294d73a9180. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM71303519.
TROLLS World Tour (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947c6c07d22e06f7bf6c98ee37a5671b466dbc6f3cf7cdee868f4fb436f34dfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11903597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b93f6158d85e5291c181516f784871cc052895d15152856b9212d813c143ea. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11903600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd67f6e778038aaaf6bde184a93b5781bb2ee6a794d12ce3f2cfbb68eb91d7b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11903607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989d3e70b81a4de1b7bd7aa3bbfe030ddff7574e1af4b478bf95b1892197ddc8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11903615.
Move Your Feet / D.A.N.C.E. / It's A Sunshine Day
TROLLS (Original Motion Picture Soundtrack) [Deutsche Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d7f919525f2bb3b030488b5b2e9fea13a6b846c02e22a12eb21884baa75fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf422c694f2f0cd8c3502432c8f8d0dee1bfdd62a586696a6329cfc3ed302f59a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5085a87cd9194f29b14a226ff7db977ea8560abe46971f7ff786758e5589bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5498c7ea38a0d8c8c3d4c1f5b5e5aa317b94f396a1c5d9f9ba3878518dea4a07. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRC11601596.